We like the fact that this group is in the "Romance and Relationships" category at Tribe.net, since we thought "MILF" was a term only used by porn spammers and horny frat boys who think "Amercian Pie" is the pinnacle of cinematic achievement (not to mention the occasional Islamic separatist.) Alas, there don't seem to be too many actual MILFs in the membership roster ... but there sure are plenty of guys who love them.
MILF Tribe (Tribe.net; free registration required)
Previously: 1, 2, 3, 4
See also: MILF Hunter